Regional ecosystem details for 4.3.24
| Regional ecosystem | 4.3.24 |
|---|---|
| Vegetation Management Act class | Least concern |
| Wetlands | Palustrine |
| Biodiversity status | No concern at present |
| Subregion | 4, 2, 5, (7), (5.5), (2.3), (1.1), (5.3), (3), (6.9), (5.4) |
| Estimated extent1 | Pre-clearing 47000 ha; Remnant 2021 47000 ha |
| Short description | Seasonal swamps. Chenopodium auricomum +/- Duma florulenta dwarf shrubland in closed depressions on floodplains |
| Structure code | Open Shrubland |
| Description | Seasonal swamps. Chenopodium auricomum dwarf shrubland to open dwarf shrubland. Occurs in closed depressions on floodplains. Soils are very deep, moderate to strongly alkaline, grey cracking clays with self-mulching or curst surface. Soils have strong coarse structure and crack widely. Palustrine. (BVG1M: 34b). Vegetation communities in this regional ecosystem include: 4.3.24a: Seasonal swamps. Chenopodium auricomum dwarf open shrubland, commonly with Eragrostis spp. and Astrebla elymoides. A wooded fringe of Eucalyptus coolabah commonly occurs. Occurs in closed depressions on Quaternary alluvial plains. Cracking clay soils. Palustrine. (BVG1M: 34g). 4.3.24b: Seasonal swamps. Chenopodium auricomum +/- Duma florulenta open shrubland. Occurs in closed depressions on braided alluvial plains. Palustrine. (BVG1M: 34b). 4.3.24x1: Chenopodium auricomum dwarf open shrubland. Emergent Eucalyptus coolabah may occur. The ground layer is variable, from bare to scattered forbs and tussock grasses. Occurs in linear open depressions in major braided alluvial systems. Cracking clay soils. Riverine. (BVG1M: 34b). |
| Supplementary description | Neldner (1991), 35a (76); Wilson and Purdie (1990a), C1 (75, 79), C3 (79), F2 (79) |
| Protected areas | Lochern NP, Diamantina NP |
| Fire management guidelines | INTERVAL: Fire return interval not relevant. INTERVAL_MIN: 100. INTERVAL_MAX: 100. STRATEGY: Exclude fire. ISSUES: Fire is unlikely to carry in herb fields because of a lack of fuel. |
| Comments | 4.3.24: Floodplain swamps associated with river systems throughout the bioregion. 4.3.24b: Floodplain swamps associated with river systems throughout the bioregion. |
1 Estimated extent is from version 13.1 pre-clearing and 2021 remnant regional ecosystem mapping. Figures are rounded for simplicity. For more precise estimates, including breakdowns by tenure and other themes see remnant vegetation in Queensland.
